Update list for Math Mechanixs

Minor release which fixes a couple bugs and adds a few new features. New features include, ability to compute in fractions in the Math Editor and the Matrix Utility, a new cell summary control in the Matrix Utility, and a new ML tool bar button to display the last computed value in the Math Editor.

Minor release which adds 2D Graphic Simulation to the 2D Quick Graph Utility. Plus new graphing options were added for line color and thickness. Also, a new Math Editor computation option was added to enhance the flexibility of computing expressions.